zone.h 2.8 KB

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  1. /*
  2. * net/tipc/zone.h: Include file for TIPC zone management routines
  3. *
  4. * Copyright (c) 2000-2006, Ericsson AB
  5. * Copyright (c) 2005-2006, Wind River Systems
  6. * All rights reserved.
  7. *
  8. * Redistribution and use in source and binary forms, with or without
  9. * modification, are permitted provided that the following conditions are met:
  10. *
  11. * 1. Redistributions of source code must retain the above copyright
  12. * notice, this list of conditions and the following disclaimer.
  13. * 2. Redistributions in binary form must reproduce the above copyright
  14. * notice, this list of conditions and the following disclaimer in the
  15. * documentation and/or other materials provided with the distribution.
  16. * 3. Neither the names of the copyright holders nor the names of its
  17. * contributors may be used to endorse or promote products derived from
  18. * this software without specific prior written permission.
  19. *
  20. * Alternatively, this software may be distributed under the terms of the
  21. * GNU General Public License ("GPL") version 2 as published by the Free
  22. * Software Foundation.
  23. *
  24. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  25. * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27. * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  28. * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  29. * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  30. * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  31. * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  32. * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  33. * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  34. * POSSIBILITY OF SUCH DAMAGE.
  35. */
  36. #ifndef _TIPC_ZONE_H
  37. #define _TIPC_ZONE_H
  38. #include "node_subscr.h"
  39. #include "net.h"
  40. /**
  41. * struct _zone - TIPC zone structure
  42. * @addr: network address of zone
  43. * @clusters: array of pointers to all clusters within zone
  44. * @links: number of (unicast) links to zone
  45. */
  46. struct _zone {
  47. u32 addr;
  48. struct cluster *clusters[2]; /* currently limited to just 1 cluster */
  49. u32 links;
  50. };
  51. struct node *tipc_zone_select_remote_node(struct _zone *z_ptr, u32 addr, u32 ref);
  52. u32 tipc_zone_select_router(struct _zone *z_ptr, u32 addr, u32 ref);
  53. void tipc_zone_remove_as_router(struct _zone *z_ptr, u32 router);
  54. void tipc_zone_send_external_routes(struct _zone *z_ptr, u32 dest);
  55. struct _zone *tipc_zone_create(u32 addr);
  56. void tipc_zone_delete(struct _zone *z_ptr);
  57. void tipc_zone_attach_cluster(struct _zone *z_ptr, struct cluster *c_ptr);
  58. u32 tipc_zone_next_node(u32 addr);
  59. static inline struct _zone *tipc_zone_find(u32 addr)
  60. {
  61. return tipc_net.zones[tipc_zone(addr)];
  62. }
  63. #endif